added basic domain allocation feature

services/web/app/coffee/Features/Subscription/SubscriptionDomainAllocator.coffee

@@ -0,0 +1,23 @@
+async = require("async")
+_ = require("lodash")
+settings = require("settings-sharelatex")
+SubscriptionGroupHandler = require("./SubscriptionGroupHandler")
+
+module.exports = SubscriptionDomainAllocator =
+
+	autoAllocate: (user, callback = ->)->
+		licence = SubscriptionDomainAllocator._findDomainLicence(user.email)
+		if licence?
+			SubscriptionGroupHandler.addUserToGroup licence.adminUser_id, user.email, callback
+		else
+			callback()
+
+
+	_findDomainLicence: (email)->
+		licence = _.find settings.domainLicences, (licence)->
+			_.find licence.domains, (domain)->
+				_.includes email, domain
+
+		return licence
+
+

services/web/package.json

@@ -19,6 +19,7 @@
     "express": "3.3.4",
     "fairy": "0.0.2",
     "jade": "~1.3.1",
+    "lodash": "3.0.0",
     "logger-sharelatex": "git+https://github.com/sharelatex/logger-sharelatex.git#v1.0.0",
     "lynx": "0.1.1",
     "metrics-sharelatex": "git+https://github.com/sharelatex/metrics-sharelatex.git#v1.0.0",

services/web/test/UnitTests/coffee/Subscription/SubscriptionDomainAllocatorTests.coffee

@@ -0,0 +1,60 @@
+should = require('chai').should()
+SandboxedModule = require('sandboxed-module')
+assert = require('assert')
+path = require('path')
+sinon = require('sinon')
+modulePath = path.join __dirname, "../../../../app/js/Features/Subscription/SubscriptionDomainAllocator"
+expect = require("chai").expect
+
+describe "SubscriptionDomainAllocator", ->
+
+	beforeEach ->
+
+		@adminUser_id = 12345
+		@settings = 
+			domainLicences: [
+				{domains:["highcools.site"], adminUser_id:"not this one"}
+				{domains:["uni.edu", "student.uni.edu"], adminUser_id:@adminUser_id}
+			]
+		@SubscriptionGroupHandler = 
+			addUserToGroup: sinon.stub().callsArg(2)
+		@SubscriptionDomainAllocator = SandboxedModule.require modulePath, requires:
+			"settings-sharelatex":@settings
+			"logger-sharelatex": log:->
+			"./SubscriptionGroupHandler": @SubscriptionGroupHandler
+
+
+
+	describe "_findDomainLicence", ->
+
+		it "should find the domain", (done)->
+			licence = @SubscriptionDomainAllocator._findDomainLicence "bob@uni.edu"
+			licence.adminUser_id.should.equal @adminUser_id
+			done()
+
+		it "should find one of the other emails in the domain list", (done)->
+			licence = @SubscriptionDomainAllocator._findDomainLicence "sally@student.uni.edu"
+			licence.adminUser_id.should.equal @adminUser_id
+			done()
+
+		it "should return undefined if no licence matches", (done)->
+			licence = @SubscriptionDomainAllocator._findDomainLicence "bob@other.edu"
+			expect(licence).to.not.exist
+			done(licence)
+
+	describe "autoAllocate", ->
+		beforeEach ->
+			@email = "bob@somewhere.com"
+			@SubscriptionDomainAllocator._findDomainLicence = sinon.stub()
+
+		it "should call the SubscriptionGroupHandler if there is licence", (done)->
+			@SubscriptionDomainAllocator._findDomainLicence.returns(@settings.domainLicences[1])
+			@SubscriptionDomainAllocator.autoAllocate {email:@email}, (err)=>
+				@SubscriptionGroupHandler.addUserToGroup.calledWith(@adminUser_id, @email).should.equal true
+				done()
+
+		it "should not call the SubscriptionGroupHandler if there is no licence", (done)->
+			@SubscriptionDomainAllocator._findDomainLicence.returns()
+			@SubscriptionDomainAllocator.autoAllocate {email:@email}, (err)=>
+				@SubscriptionGroupHandler.addUserToGroup.called.should.equal false
+				done()